I agree with a lot of what Derrick Jensen had to say in Endgame, but other than that, I'm afraid he's too transphobic/anti-anarchist for my liking. Also, speaking of hierarchies, isn't DGR (his organization, Deep Green Resistance) organized hierarchically?

Civilization - a complex society characterized by urban development, social stratification, […] and a perceived separation from and domination over the natural environment, and social domination by cultural elite. (Wikipedia)

Anti-civilization anarchism arose out of an agreement with anarcho-primitivism's analysis that structural oppression and environmental destruction are largely a result of civilization, but it rejects many primitivism's proposed solutions as unworkable (at least in the near-term). Anticiv also recognizes that civilizational collapse is likely, but doesn't necessarily work to bring it about.